Silent-travel attachment for player-pianos.



F. W. DRAPER. SILENT TRAVEL ATTACHMENT EOE PLAYER MANOS.

APPLIOATION FILED JULY 31, 1913. Y 1,1 12,989. Patentedct. 6, 1914,

4 BHETS-SHBET l.

Illlll illl! l 1 Bnvcntor Gttorncgs FJW. DRAPBR4 SILENT TRAVEL ATTACHMENT POR PLAYER PIANOS. s\1, 1913.

APPLICATION FILED JULY Patented Oct. 6, 1914.

4 SHEETS*SHEET 2.

||||Illllllllllllllllllllllllllllll lllllllllllllnum" Isnvleutor attorneys F. W. DRAPER. SILENT TRAVEL ATTACHMENT POR PLAYER AMANOS.

APPLIOATION FILED JULY 3l. 1913. 1,112,989. tea 0@t.6,1914.

SHEETS--SHEET 3.

Buventor F. W. DRAPER,

SILENT TRAVEL ATTACHMENT EoR PLAYER PIANos.

A1 1 9 1 n0, Llu. C 0 d e LuU m a P om l 9 l l 3 Y L U Tv D E L I D.. YN. w T A C I L P D.. A 9 8 9 2 1 1l 1 SHEET 4.

4 SHEETS- hmentor ne s witnesss www W dttorncgs 1,' 1 e111 tinfcngli il: e

FRANIS W. ERPER, E

ation C11' Letters Patent.

cennty nl have invented ce i lese-rijm:

Wil ennlJle einem ic nay/ei 111.11111 to pmvide :1 aiien 'i .f 1isn'1 whereby a cel'ljnin pcii ci flic Inn-Sie. sh'cei 111:11' be 11' .ed with 11eF actuating ine action in 1'l1e iena?. 11'1a1111e1'.

the: vcnticn. Y i Vfi/,1thy hese :1nd ohei' cbjeclis in View 13m inventin ccinpi'ie'eg; eeeiai11.nf11'el. 1111115111' tienej y eenfhinatimie ,and k1 i'j'aneem 111 parte as. will be herfeinaftei' 11111115 ilfnljy 111 scribed and claimed. v I l i lie 'winge: Figure ie 11 m1111111:

tional View of :1 player piann wiili .lar 11' removed ehcn'ingtlie' aiwuigenieni el' 11e parie. Fig. 2 a icngiliuiiiml" seeiimial 111111111'laecelei'ati. g p1 e11-l 1111 1c, taken en he iine 2N2 of'Fi 411ml through. 1 ninimwa'eel ating' pnenn 'tie 'baken cfu li .es L?. l and 51. "f

ci Fig. Figi. f1 ie :111 ini'ei'ted plan View ci 'die 11101501' za'celei'alnig 'l'i1e cover member 111? the es viewed from ille :1.1111115 111 .lligsz INDIANA. ASSIGNOR TO STARR Si A CO'PORATION 0E INANA. A

l l 1 l l 1 l 1 p11e111111l1'i-c' 'wiili .uniflne and 11111311111111i1' i'en'ms'ed l Valve 2G opened und l such lever w fi. .il is' 'which ia ilae 11111'111f1l (rendition. il en Llia llxe pzimige Serial No.

1 l1 1a 1 :eeional View l iln'wu'gh llxe 11111.1111111lie taken 11n line lL-- I ci Pigs. L) :1111i Fig. T is a lcngiindinal l 51115111111? 111111' ll'11'1111pjl1 the action intei'rnppiieinnaiif'. Fig'. ifi irs a 11i' the nianna valve u .liagi'an'nnalical 51e-1v ai11l conneehens. 111111' 11F the 111111111111 Ulfl.

Gatien keine' subjected t0 lcws B pi'eiembly 1fli1'e1'liy if) the i'i'cnt 1 llie bellow, 1'1111111111111'- lii'uegli the opening` 16, as l111\\'11 ali ',l`l'1e linnslne' l5 1'11111- 1111111i1'1111` 1l 1T with 11 heee pipe 11A c1111./ '1131i .1'i1l1 the action ilia. H11 aeiien \\'1111 l1'l1e,-:12 exlmnser'l 1:1l 11111111111'exeepi, 1l1at1l1el1011ei11g i11 1e^ie l i1; iie 11111 11'l` whine'. ll'illiln i le :1 valve lg i1, located tai'i'icd a 1': lve s111111 lf) and nele: led by 11 |=11e111na1i1- 2() ,au iliat when 111e pneumatic .20 is expanded ll1e valve `lS is lifted to close the i1111e1' end ef the p11 ige ifo the uelicn winzlchesi, and interi'np' he movement of 1'l1e action. T.; ecntm s111'l1 pneumatic a '1 Q1 is 11i-caida? e111111111111i1'a1ing with 11n 11'1lice Qr 111111111' the pnennmiie 9) so that 11111101111151111111 al1' 11111)' be lnlmdneed within lie 1111111111111tic 2() 11'l1icl1 being subjected to f-xlmnsi 511.1111 llie l1elli111`5 would be raised -Ll1e inlernal al1'. ,.1 bleefiei' il 1s prel .-111 H111! 11111e1' 11m-lin; Cendiimls ille 1111111121* 111:11' l111l11 i111 ginemnaiic Q0 in cel.- 11-:e1l e11111lili1111. :1111i l1e passage in l'lie :11'i1111 Winde-liest lie 11111i11111i11e1l under ex- 1-:11111 5h w11 as nl Fig.

11 lilik l1a11st. Wilh ilie 1 111111111'- '1'11111 the 'action wind.- ceei 111 1h15? bellen., 1:1l uninlei'i'upeel but tlmi when ail' i :11'I111it1e1i ln'engli Yche tube 2l, i'ne ine pneinnaiie iO sncli pneumatic will be expanded and lie valve 18 closed. admit ail' to such tube 2l :1 junction block is provided with which the tube 2l c0mwhich is the leveix 27 manually, os'belng the 1x1-e1 c1i111t1'cll1ng the gvevifed with a,

rewind and operated only when the sheet is being rewound. Communicating also with the junction block is a tube 2S which communicates with a manual valve Q9. The

5Y 'valve 29 comprises apush button 30 and an inlet valve Sl which closes communication between the pipe 28 and the atmosphere. Such i'nanual valve does not specilically form any pai-t of the present invention.

It is obvious that 'when the push button,

30 is depressed the valve 3l will open com-` munication froin'the atmosphere to the ytube 2S, admitting air through junction block 25 to the tube 2l and to the pneumatic 2() whereby such pneumatic will be expanded and the valve 1.8 closed.` Therefore, atany point where it is desired to stop the action the simple depressing of the push button 3() will accomplish the purpose. As it de- Ee sirable to more the music sheet as rapidly possible during such silent travel so that such silent interval will be as short as possible, means is provided for increasing the capacity ci the conduit leading to the motor and thereby.accelerating the action of such motor simultaneously with closing the valve 1S, Such means comprises a branch tube 52 extending also from the junction block 25 and supplied with air simultaneously with the supply ot air to the tube 2l. The tube 32 leads vto the motor accelerating pneumatic 33 which is connected in any manner with an exhaust chamber for instance through the tube 34 and, therefore, subject to exhaust.

The admission of air, therefore, to the pneumatic tends to expand the said pneumatic. rIhe pneumatic 35 carries a valve stem 38 which in turn carries a valve 39,.sueh valve la 39 being held normally yieldingly closed by `a spring ell) and in such closed condition closing communication between the chamber 3G and an adjacent chamber 4l. rThe chamber il communicates through passage 42 directly with the i ting i3 which leads to the motor pneumatics, so it will be apparent that when the valve 39 .is raised direct communication is established between the exhausted chamber 36 and the motor pneumatic. vWvith the valve Si) closed, the passage for the air through the titting from the motor pneumatic first into .the chamber Lll and then through an opening Llil controlled by the manual tempo slide 45, through the passage 30 lf3 into the pneumatic chamber 17, through the orilicr. i8 of the block 49 and into the passage 3'4", as shown particularly at Fig. 3, the mssage thi' "gh the orifice 48 being controlled by a pivoted valve .50 actuated by the i 52 with such pivoted valve 50 so that assuch l wall 5l closes the orifice 48 is partially closed. A spring 53 is also provided which tends to hold the movable wall yieldingly open, This pivoted valve with its operating movable wall forms no specific partf of the present invention except in combination with tht` other parts hereinbefore described,y 'Such pai-ts being a lrnown automatic tempo control. lThe exhaust acts first upon the mov,- able wall 51 and if excessive tends vto cause. the movable fall 5l to close against the,y tension of the spring which closes thel passage Li8 thereby subjecting the motor to a substantially constant degree of rarelication. It will, therefore, be seen that the member indicated as a whole at 33 serves the purpose of automatic tempo control, a manual tempo control, and a' means for accelerating the motor automatically when the passage to the action fis interrupted as' heref inbefore described.

I claim: i y l. In a player piano. the combination with y al bellows, a conduit lending thence to the ac tion, a pneumatieally 'controlled interrupter in this conduit',` a second conduit leading'l from the bellows to the motor, and pneumatically controlled means in this conduit ifor increasing its carrying capacity; of a 4junction block having a four-way passage,

tubes leading from tivo of the arms of said passage to the interrupter and to said means respectively, a valve in the third arm, means for actuating this valve by the movement of the rewind mechanism, a normally closed inlet valve to the fourth arm, and a manual A for opening this valve.

2. In a. player piano, theA combination with a bellows, a conduit leading thence to the. action, a pneumatically controlled interrupter in this conduit, a second conduit leading from the bellows to the motor, and pneumatieally controlled means in this conduit lio for increasing its carrying capacity; of a A junction block having a four-Way passage, tubes leading from two of the arms of said. passage to the interrupter and to said means respectively, a valve normally closing the" third arm, connections between the rewindv mechanism 'and this valve for opening it when the mechanism is actuated, and a man- 

